Rafael Nadal seeks the fifth Caja Magica crown this week, entering his home Madrid Masters for the record-breaking 19th time. Rafa is back in action after skipping six weeks due to a rib injury, losing the Indian Wells final and withdrawing from his favorite events in Monte Carlo and Barcelona.Daniela Hantuchova knows how serious rib injuries could be, and she believes it’s a miracle for Rafa to even play in Madrid. Not knowing how his body would react, Nadal has scored two victories to advance into the 16th quarter-final in the Spanish capital.In the second round, the home f …